321049692128 has 48 divisors (see below), whose sum is σ = 690263776944. Its totient is φ = 145775784960.

The previous prime is 321049692101. The next prime is 321049692143. The reversal of 321049692128 is 821296940123.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156875 + ... + 816522.

It is an arithmetic number, because the mean of its divisors is an integer number (14380495353).

Almost surely, 2^321049692128 is an apocalyptic number.

It is an amenable number.

321049692128 is an abundant number, since it is smaller than the sum of its proper divisors (369214084816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321049692128 is a wasteful number, since it uses less digits than its factorization.

321049692128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974355 (or 974347 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 47.

The spelling of 321049692128 in words is "three hundred twenty-one billion, forty-nine million, six hundred ninety-two thousand, one hundred twenty-eight".